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Vanner begins serial production of 17.1 kW, 600A 600VDC to 24VDC liquid-cooled converter with SiC solid-state switching for ZEV and hybrid vehicles

Vanner has begin serial production of its latest 17.1 kW, 600VDC to 24VDC liquid-cooled converter with Silicon Carbide Solid-State Switching (SiC) for ZEV and hybrid vehicles.

This technology builds on the 300 ampere 600VDC to 24VDC air-cooled converter. Named the Hybrid Beltless Alternator (HBA), the 300-ampere air-cooled converter has been in serial production since 2011 and has been used by OEMs New Flyer, Gillig, Nova, ENC and Tata. It is a main product for Vanner. Stringent testing and validation were performed, including 2010 vehicle validation in the desert of Death Valley, California.

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There is an increasing need for more accessory electrification, extended vehicle range, and the need for a reduction in converter size. Vanner designed a 17.1 kW, 600-ampere converter with SiC switching for highest efficiency. This converter is liquid-cooled to minimize the footprint for a converter this size. It is IP67 rated. In 2022 Desert Thermal Endurance Testing was conducted.

Vanner Inc. introduced our air-cooled DC to DC converter in 2011. It has an electrical efficiency between 92% – 96%. This compares to belt-driven alternators that can have efficiencies as low as 50%. With our new converter using Silicon Carbide (SiC) and our engineering implementation, electrical efficiency operates between 96% -98%. This near 100% efficiency is especially important when heavy duty zero-emission vehicles are looking for efficiency gains to extend their operating range.

—Alec Cook, VP Engineering and CTO, Vanner

When combined with a Vanner 80-Series Equalizer with Model Based Battery Monitoring (MBBM), the converter will automatically adjust its output to optimize 12/24VDC battery charging based on Vanner algorithms that continuously calculate State-of-Charge and State-of-Health. These products offer a CAN communication interface besides being compatible with our Dashboard diagnostic software.

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